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CDMA/TDD system for mobile multimedia communications

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2 Author(s)
Dong Geun Jeong ; Dept. of Electron. Eng., Hankuk Univ. of Foreign Studies, South Korea ; Wha Sook Jeon

This paper proposes a CDMA/TDD system for wireless multimedia services with traffic unbalance between uplink and downlink. In the proposed system, the number of uplink time slots in a TDD frame differs from that of the downlink. Moreover, the difference can be reset by the network operator according to the traffic pattern. We evaluate the performance of the proposed system under multimedia environments. The results show that the frequency utilization is maximized even when the uplink and downlink traffic volumes are unbalanced. This, in turn, reduces drastically the blocking rate of multimedia calls (connections) in the proposed system compared with that in the traditional CDMA systems where the uplink and downlink use equal bandwidth

Published in:

Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on  (Volume:2 )

Date of Conference:

7-11 Jun 1998